EP4183582A1 - Feuille de résine présentant des corps semblables à des cheveux et article moulé correspondant - Google Patents

Feuille de résine présentant des corps semblables à des cheveux et article moulé correspondant Download PDF

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Publication number
EP4183582A1
EP4183582A1 EP21842731.8A EP21842731A EP4183582A1 EP 4183582 A1 EP4183582 A1 EP 4183582A1 EP 21842731 A EP21842731 A EP 21842731A EP 4183582 A1 EP4183582 A1 EP 4183582A1
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EP
European Patent Office
Prior art keywords
hair
bodies
resin sheet
resin
base layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21842731.8A
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German (de)
English (en)
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EP4183582A4 (fr
Inventor
Keishi Maeda
Hiroko Toyama
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Denka Co Ltd
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Denka Co Ltd
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Publication date
Application filed by Denka Co Ltd filed Critical Denka Co Ltd
Publication of EP4183582A1 publication Critical patent/EP4183582A1/fr
Publication of EP4183582A4 publication Critical patent/EP4183582A4/fr
Pending legal-status Critical Current

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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/263—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer having non-uniform thickness
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/002—Combinations of extrusion moulding with other shaping operations combined with surface shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
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    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1054—Regulating the dimensions of the laminate, e.g. by adjusting the nip or platen gap
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/02—Synthetic macromolecular particles
    • B32B2264/0214—Particles made of materials belonging to B32B27/00
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2264/20—Particles characterised by shape
    • B32B2264/204—Rod- or needle-shaped particles
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    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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Definitions

  • the present invention pertains to a resin sheet having hair-like bodies and a molded article of the same.
  • Patent Document 1 presents a resin sheet having hair-like bodies arranged regularly on a surface thereof.
  • Patent Document 1 WO 2018/016562 A
  • the problem to be solved by the present invention is to provide a resin sheet which has good tactile sensation and can be secondarily molded on a member surface having a complicated shape, and a molded article thereof.
  • a resin sheet having: a base layer having hair-like bodies arranged regularly on one surface thereof; and a substrate layer on the surface opposite the hair-like bodies of the base layer, wherein a thickness (a) of the substrate layer is 10 ⁇ m or greater and 250 ⁇ m or less, the thickness (a) of the substrate layer and a thickness (b) of the base layer satisfy a ⁇ b, the substrate layer comprises a polycarbonate-based resin and/or a styrene-based resin, and the base layer and hair-like bodies comprise a thermoplastic polyurethane resin, the resin sheet has a good tactile sensation and can be secondarily molded on a member surface having a complex shape, thereby arriving at the present invention.
  • the present invention which solves the above problem, is configured as follows.
  • a resin sheet which has good tactile sensation and can be secondarily molded on a member surface having a complicated shape and a molded article thereof can be provided.
  • the resin sheet according to a first embodiment of the present invention is a resin sheet having: a base layer having hair-like bodies arranged regularly on one surface thereof; and a substrate layer on the surface opposite the hair-like bodies of the base layer, wherein the thickness (a) of the substrate layer is 10 ⁇ m or greater and 250 ⁇ m or less, the thickness (a) of the substrate layer and the thickness (b) of the base layer satisfy a ⁇ b, the substrate layer comprises a polycarbonate-based resin and/or a styrene-based resin, and the base layer and hair-like bodies comprise a thermoplastic polyurethane resin.
  • the hair-like bodies and the base layer, and the substrate layer are directly laminated. That is, the layer configuration of the resin sheet according to the first embodiment is, from top to bottom, the hair-like bodies and the base layer/the substrate layer.
  • the substrate layer in the present embodiment is preferably a layer provided with sufficient adhesion with the base layer.
  • a base layer (1a) is a layer serving as a base for hair-like bodies and refers to the portion of the surface, denoted by reference sign 1, other than the hair-like bodies 1b.
  • the thickness of the base layer refers to the thickness from the roots of the hair-like bodies to the surface opposite the base layer.
  • the average thickness of the substrate layer is preferably 10 ⁇ m or greater and 500 ⁇ m or less, more preferably 50 ⁇ m or greater and 450 ⁇ m or less, and still more preferably 100 ⁇ m or greater and 400 ⁇ m or less.
  • a continuous phase may be formed without a structural boundary between the base layer and the hair-like bodies.
  • the absence of a structural boundary means that the base layer and the hair-like bodies are integrally formed and that there is no structurally clear boundary section therebetween.
  • forming a continuous phase refers to a state in which there is no seam between the base layer and the hair-like bodies and no discontinuities (a continuous phase is formed).
  • the present invention differs from a structure in which hair-like bodies are transplanted to a base layer.
  • the base layer and the hair-like bodies may have the same composition and the bonds between the base layer and the hair-like bodies may include covalent bonds.
  • a covalent bond refers to a chemical bond formed by an electron pair being shared by two atoms and in thermoplastic resins which are chain molecules in which monomers are connected, each polymer is bonded by a covalent bond and is bonded more strongly than by the van der Waals bonds or hydrogen bonds acting between polymer molecules.
  • the base layer and the hair-like bodies may be derived not from separate, but from the same solid thermoplastic resin sheet. Derived from the same solid thermoplastic resin sheet means, for example, the hair-like bodies and the base layer being obtained, directly or indirectly, based on the same resin sheet.
  • the base layer and the hair-like bodies may be formed from the same solid thermoplastic resin sheet.
  • Formed from the same solid thermoplastic resin sheet means that the hair-like bodies and the base layer are directly formed by processing a single resin sheet.
  • the hair-like bodies separating from the base layer due to an external stimulus is suppressed and a sheet having a good tactile sensation is achieved. Further, manufacturing with fewer steps than when transplanting hair-like bodies is possible.
  • the base layer and the hair-like bodies comprise the same resin composition having a thermoplastic resin as a main component.
  • a main component means containing 50% by mass or greater.
  • the base layer and the hair-like bodies preferably contain 60% by mass or greater, 70% by mass or greater, 80% by mass or greater, or 90% by mass or greater of a thermoplastic resin.
  • the base layer and the hair-like bodies contain 50% by mass or greater, 60% by mass or greater, 70% by mass or greater, 80% by mass or greater, or 90% by mass or greater of a thermoplastic polyurethane resin as the thermoplastic resin in the first embodiment of the present invention.
  • the base layer and the hair-like bodies can further comprise one or more other thermoplastic resins from styrene-based resins, olefin-based resins, polyvinyl chloride resins, thermoplastic elastomers, and fluorine-based resins.
  • the content of the other thermoplastic resin can be set to 10% by mass or greater and 50% by mass or less in the total resin composition.
  • thermoplastic polyurethane resin is a resin that has an isocyanate and a polyol as raw materials and as the combination thereof, any one combination in which the isocyanate is diphenylmethane diisocynate (MDI)-based, H 12 MDI-based, or hexamethylene diisocyanate (HDI)-based and the polyol is polyether-based, polyester-based, or polycarbonate-based may be selected, or a plurality thereof may be combined.
  • MDI diphenylmethane diisocynate
  • HDI hexamethylene diisocyanate
  • a combination of an HDI-based isocyanate and a carbonate-based polyol can be suitably used.
  • styrene-based resin a styrene-based monomer such as styrene, ⁇ -methylstyrene, p-methylstyrene, dimethylstyrene, p-t-butylstyrene, or chlorostyrene alone or a copolymer thereof, a copolymer of such a styrene-based monomer and another monomer, for example, a styrene-acrylonitrile copolymer (AS resin), or of the styrene-based monomer and yet another polymer, for example, a graft polymer which was graft polymerized in the presence of a diene-based rubber-like polymer such as polybutadiene, a styrene-butadiene copolymer, polyisoprene, or polychloroprene, or a polystyrene such as, for example, high-impact polys
  • Polyolefin-based resin means a resin comprising a polymer including ⁇ -olefin as a monomer.
  • polyolefin-based resins include polyethylene-based resins and polypropylene-based resins.
  • a high-density polyethylene, a low-density polyethylene, a linear low-density polyethylene, a linear medium-density polyethylene, and the like can be used as the polyethylene resin and not only these alone, but a copolymer, graft, or blend having these structures can also be used.
  • Examples of the latter resin include, for instance, products of copolymerizing or blending a resin having a polar group in a polyethylene chain, such as blends with an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ethylene-acrylic ester copolymer, an ethylene methacrylic ester copolymer, an ethylene-vinyl acetate-vinyl chloride copolymer, or a three-component copolymer with a further acid anhydride.
  • a resin having a polar group in a polyethylene chain such as blends with an ethylene-vinyl acetate copolymer, an ethylene-acrylic acid copolymer, an ethylene-acrylic ester copolymer, an ethylene methacrylic ester copolymer, an ethylene-vinyl acetate-vinyl chloride copolymer, or a three-component copolymer with a further acid anhydride.
  • a homopolypropylene, a random polypropylene, a block polypropylene, or the like can be used as the polypropylene resin.
  • the structure of the homopolypropylene may be any of isotactic, atactic, or syndiotactic.
  • a random polypropylene a substance preferably having 2-20 carbon atoms and more preferably having 4-12 carbon atoms, for example, ethylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, or 1-decene can be used as the ⁇ -olefin to be copolymerized with propylene.
  • a block copolymer (block polypropylene), a block copolymer comprising a rubber component, a graft copolymer, or the like can be used.
  • olefin-based resins alone, they can also be used in combination with other olefin-based resins.
  • a vinyl chloride homopolymer or a copolymer of vinyl chloride and another comonomer can be used as the polyvinyl chloride resin.
  • the polyvinyl chloride may be a random copolymer or may be a graft copolymer.
  • a graft copolymer is a copolymer in which, for instance, an ethylene-vinyl acetate copolymer or a thermoplastic urethane polymer is made the backbone polymer and vinyl chloride is graft polymerized thereto.
  • the polyvinyl chloride of the present embodiment is a composition demonstrating an extrusion-moldable soft polyvinyl chloride and containing an additive such as a polymer plasticizer.
  • a known polymer plasticizer can be used as the polymer plasticizer, but, for example, an ethylene copolymer polymer plasticizer such as an ethylene-vinyl acetate-carbon monoxide copolymer, an ethylene-(meth)acrylic ester-carbon monoxide copolymer, or an ethylene-vinyl acetate copolymer with a high vinyl acetate content can be raised as a preferred example.
  • the thermoplastic elastomer includes elastomers having a structure in which a soft polymer substance and a hard polymer substance are combined. Specifically, examples include styrene-based elastomers, olefin-based elastomers, vinyl chloride-based elastomers, polyester-based elastomers, and polyamide-based elastomers. These elastomers can be selected from among those generally commercially available and used.
  • PVDF Polyvinylidene fluoride
  • VDF Polyvinylidene fluoride
  • examples of the vinylidene fluoride copolymer include, for instance, vinylidene fluoride-hexafluoropropylene copolymers, vinylidene fluoride-tetrafluoroethylene copolymers, vinylidene fluoride-chlorotrifluoroethylene copolymers, vinylidene fluoride-trifluoroethylene copolymers, vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene three-component copolymers, vinylidene fluoride-chlorotrifluoroethylene-hexafluor
  • the melt mass flow rate of the thermoplastic resin at 190°C to 300°C is preferably 4 g/10 minutes or greater. By setting the rate to 4 g/10 minutes or greater, the transferability of the shape of the hair-like bodies can be improved.
  • the melt mass flow rate is a value measured according to JIS K 7210 under the conditions of a load (2.16 kg to 10.0 kg) at a test temperature in the temperature range from 190°C to 300°C.
  • thermoplastic resin may be alloyed with the abovementioned thermoplastic resins at any ratio so long as the effects of the present invention are not inhibited.
  • the thermoplastic resin may contain other additives.
  • An additive such as a water/oil repellent, a colorant such as a pigment or a dye, a mold release agent such as silicone oil or an alkyl ester-based agent, a fibrous reinforcing agent such as glass fibers, or as a filler, a granular microparticle such as talc, clay, or silica or a scaly microparticle such as mica, a low molecular weight type anti-static agent such as a salt compound of sulfonic acid and an alkali metal or the like or a high molecular weight type anti-static agent such as polyether ester amide, a flame retardant, an anti-bacterial agent, an anti-viral agent, or a heat stabilizer can be added as the other additives, so long as the effects of the present invention are
  • Examples of the water/oil repellent include silicone-based water repellents, carnauba wax, and fluorine-based water/oil repellents.
  • Examples of the silicone include organopolysiloxane, dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, and the like and among these, dimethylpolysiloxane is suitably used.
  • Examples of commercially available products include, for instance, "Clinbell CB50-PP", “Clinbell CB-30PE", “Clinbell CB-1", “Clinbell CB-50AB” (manufactured by Fuji Chemical Industries, Ltd.), and the like in which silicone is alloyed with a resin.
  • Examples of the carnauba wax include, as commercially available products, "Carnauba No. 1” (manufactured by NIKKO RICA CORPORATION) and the like.
  • Examples of the fluorine-based water/oil repellent include surfactants having a perfluoroalkyl group and also include, as a commercially available product, "Surflon KT-PA” (manufactured by AGC SEIMI CHEMICAL CO., LTD.).
  • the amount of the water/oil repellent added is preferably 0.5% by mass to 25% by mass. At less than 0.5% by mass, sufficient water/oil repelling effects may not be obtained and at greater than 25% by mass, the moldability may worsen.
  • anti-static agent examples include polyether ester amide-based high molecular weight type anti-static agents, ionomer-based high molecular weight type anti-static agents, and the like.
  • polyether ester amide-based high molecular weight type anti-static agent examples include, as commercially available products, "Pelestat 230,” “Pelestat 6500,” “Pelectron AS,” “Pelectron HS” (manufactured by Sanyo Chemical Industries, Ltd.), and the like.
  • ionomer-based high molecular weight type anti-static agent examples include, as commercially available products, "Entira SD100", “Entira MK400” (manufactured by DU PONT-MITSUI POLYCHEMICALS), and the like.
  • the amount of the anti-static agent added is preferably 5% by mass to 30% by mass. At less than 5% by mass, sufficient anti-static properties may be unobtainable and at greater than 30% by mass, the production costs increase.
  • an inorganic or organic antibacterial agent may be added.
  • inorganic agents are preferable.
  • examples include metal ion (Ag, Zn, Cu) inorganic anti-bacterial agents, calcined shell calcium-based anti-bacterial agents, and the like.
  • examples of commercially available metal ion inorganic anti-bacterial agents include "Bactekiller BM102VT” (manufactured by Fuji Chemical Industries, Ltd.), "Novaron VZF200,” “Novaron (AG300)” (manufactured by TOAGOSEI CO., LTD.), "KM-10D-G,” “IM-10D-L” (manufactured by Sinanen Zeomic Co., Ltd.), and the like.
  • calcined shell calcium-based anti-bacterial agents examples include "Scallow” (manufactured by FID, Ltd.) and the like.
  • the amount of the anti-bacterial agent added is preferably 0.5% by mass to 5% by mass. At less than 0.5% by mass, sufficient anti-bacterial properties may be unobtainable and at greater than 5% by mass, the production costs increase.
  • an alkyl-based mold release agent such as an aliphatic hydrocarbon-based compound, a higher fatty acid-based compound, a higher aliphatic alcohol-based compound, or a fatty acid amide-based compound, a silicone-based mold release agent, a fluorine-based mold release agent, and the like can be used.
  • the amount added is preferably 0.01-5 parts by mass, more preferably 0.05-3 parts by mass, and still more preferably 0.1-2 parts by mass of a total of 100 parts by mass with the resin composition.
  • the amount added is less than 0.01 parts by mass, the mold releasing effect may be reduced and at greater than 5 parts by mass, bleed-out may occur on the sheet surface.
  • a masterbatch or the like in which a lubricant/mold release agent is alloyed in advance with a thermoplastic resin.
  • examples of commercially available masterbatches with a urethane-based thermoplastic elastomer base include, for instance, "Waxmaster V" (manufactured by BASF) and considering production efficiency, it is preferable that a masterbatch be used.
  • the amount of masterbatch added is preferably 1-8 parts by mass, more preferably 2-7 parts by mass, and still more preferably 3-6 parts by mass of a total of 100 parts by mass with the resin composition.
  • Hair-like bodies (1b) refers to a portion extending hair-like from the surface of the base layer (1a), as shown in Fig. 1 .
  • the hair-like bodies are arranged regularly on the surface of the base layer.
  • arranged regularly means a state in which the hair-like bodies are not arranged randomly, that is, a state arranged in an orderly fashion (e.g., at fixed spacing) in one direction or in two directions. Whether or not the arrangement of the hair-like bodies is regular is determined based on the state of arrangement of the roots of the hair-like bodies.
  • the hair-like bodies are positioned on the base layer at a predetermined spacing and the positions of the bottom surfaces of the hair-like bodies are arranged in an orderly fashion in the longitudinal direction and the transverse direction of the base layer.
  • the form of arrangement of the hair-like bodies is not particularly limited and a vertically and horizontally arranged grid arrangement, a staggered arrangement, or the like can be selected. Due to the hair-like bodies being arranged regularly on the surface of the base layer, a good tactile sensation is readily expressed, uniformly and without irregularities. Falling of the hair-like bodies occurs due to the application of a load such as, for example, tracing with a finger and finger marks in which the gloss and color tone differ from those of the surrounding portion can be formed. Further, due to the hair-like bodies, the tactile sensation can become like that of a suede-like napped sheet.
  • the average height (h) of the hair-like bodies is preferably 30-500 ⁇ m, more preferably 30-250 ⁇ m, still more preferably 30-200 ⁇ m, and especially preferably 90-200 ⁇ m.
  • the average height is preferably 30-500 ⁇ m, more preferably 30-250 ⁇ m, still more preferably 30-200 ⁇ m, and especially preferably 90-200 ⁇ m.
  • the length from the root to the tip of the hair-like bodies represents the height of the hair-like bodies.
  • the distance from the surface of the base layer at the location of the hair-like bodies most removed from the surface of the base layer is made the height h of the hair-like bodies.
  • the total value of the spacing from the tip to a central portion of the root of the hair-like bodies, segmented by multi-point measurement, is made the length L of the hair-like bodies.
  • the height of the hair-like bodies and the length of the hair-like bodies are measured, using an electron microscope and image processing software, at a number of arbitrary locations on the resin sheet and the arithmetic mean values of the measurements can be used as the average height of the hairlike bodies and the average length of the hair-like bodies.
  • the average diameter (d) of the hair-like bodies is preferably 1-60 ⁇ m, more preferably 5-50 ⁇ m, and still more preferably 5-40 ⁇ m.
  • the average diameter of the hair-like bodies is a value obtained by using the arithmetic mean value of measurements of the diameter at mid-height (h/2) of the hair-like bodies at a number of locations on the resin sheet using an electron microscope and image processing software.
  • the aspect ratio of the hair-like bodies can be represented as (average height of the hair-like bodies/average diameter of the hair-like bodies).
  • the aspect ratio of the hair-like bodies is preferably 2-20, more preferably 2-10, and still more preferably 2-5.
  • a good tactile sensation can be ensured and by setting the aspect ratio to 20 or less, not only is a good tactile sensation such as moistness, softness, or fluffiness obtained, but the risk of the height-to-length ratio of the hair-like bodies becoming no higher than a certain level can be reduced.
  • the average bottom surface diameter of the hair-like bodies can also serve as a reference for the aspect ratio.
  • the average bottom surface diameter of the hair-like bodies is preferably 10-150 ⁇ m.
  • the average bottom surface diameter of the hair-like bodies is a value obtained by using the arithmetic mean value of measurements of the spacing between neighboring hair-like bodies at a number of locations on the resin sheet.
  • the aspect ratio when the bottom surface diameter of the hair-like bodies serves as a reference therefor, is preferably 1.0-10, more preferably 1.0-5, and still more preferably 1.0-2.5.
  • the aspect ratio By setting the aspect ratio to 1.0 or greater, a good tactile sensation can be ensured and by setting the aspect ratio to 10 or less, not only is a good tactile sensation such as moistness, softness, or fluffiness obtained, but the risk of the height-to-length ratio of the hair-like bodies becoming no higher than a certain level can be reduced.
  • the average spacing (t) between the hair-like bodies is preferably 20-200 ⁇ m, more preferably 40-150 ⁇ m, and still more preferably 40-100 ⁇ m.
  • the spacing between the hair-like bodies means the distance from the center of the root of a hair-like body to the center of the root of a neighboring hair-like body.
  • the shape of the hair-like bodies is not particularly limited and may be configured to extend hair-like in a direction away from the base layer in a shape in which the hair-like bodies gradually thin approaching the tip or in which a swelling is formed at the tip. That is, the hair-like bodies may have a shape in which the cross-sectional area gradually shrinks with increasing distance from the base layer and then once again increases when the shape terminates. Further, the shape of the tip part of the hair-like bodies may be bud-shaped or mushroom-shaped.
  • the hair-like bodies may have a portion positioned at the base end extending in a direction away from the base layer, a portion that extends from the portion positioned at the base end and is curved with a fixed curvature or a curvature that gradually changes, and furthermore, a portion that is wound in a helix shape or a spiral shape.
  • the tip parts of the hair-like bodies may have a shape that is folded inward. By having such a shape, a good tactile sensation is expressed. Further, due to the bud-shaped or mushroom-shaped portion being hollow, a better tactile sensation is expressed.
  • the ratio of the average diameter of the width of the bud shape or mushroom shape with respect to the average diameter of the hair-like bodies be 1.1 or greater.
  • the height of the bud shape or mushroom shape is preferably 7 ⁇ m or greater.
  • the average diameter of the hair-like bodies and the average diameter of the width and the height of the bud shape or mushroom shape are values obtained by using the arithmetic mean value of measurements made with a scanning electron microscope photograph.
  • the hair-like bodies comprise a thermoplastic resin. The same resins that can be used in the base layer can be used as the thermoplastic resin.
  • the thermoplastic resin included in the base layer and the hair-like bodies may form an at least partially three-dimensional cross-linked structure (for example, a three-dimensional net-like structure).
  • a three-dimensional net-like structure for example, it may be such that in certain embodiments, at least part of the hair-like bodies is a cross-linked body, in other embodiments, the entire surface of the hair-like bodies is a cross-linked body, and in yet other embodiments, the entirety (from the boundary with the base layer to the tip part) of the hair-like bodies is a cross-linked body.
  • Examples of methods for forming a cross-linked body include, for instance, methods involving forming a resin sheet and then irradiating a surface thereof having hair-like bodies with an electron beam and methods involving adding an organic peroxide and forming by heating and humidifying during or after molding of the resin sheet.
  • Examples of resins in which an organic peroxide is added include, among commercially available products, "LINKLON” manufactured by Mitsubishi Chemical Corporation and the like.
  • cross-linked bodies be formed by electron beam irradiation (electron beam cross-linked bodies).
  • thermoplastic resin with excellent adhesiveness with the base layer be used as the substrate layer in the resin sheet according to the first embodiment and a polycarbonate-based resin, a styrene-based resin, a resin wherein these have been polymer-alloyed, and the like can be used.
  • thermoplastic resin such as an olefin-based resin, a polyester-based resin, a nylon-based resin, an acrylic resin, or a thermoplastic elastomer is polymer-alloyed at an arbitrary proportion with a polycarbonate-based resin or a styrene-based resin can be used.
  • the polymer-alloying ratio is preferably 99:1 to 20:80, more preferably 80:20 to 30:70, and still more preferably 60:40 to 40:60. Further, when laminating, there is lamination by coextrusion molding and lamination by extrusion laminate molding or dry laminate molding using a non-stretched film or a biaxially stretched film.
  • polycarbonate-based resin examples include substances derived from aliphatic dihydroxy compounds and substances derived from aromatic dihydroxy compounds.
  • substances derived from aromatic dihydroxy compounds can be suitably used and substances derived from aromatic dihydroxy compounds (bisphenols) in which two aromatic dihydroxy compounds are bonded via a certain type of bonding group are particularly preferable.
  • Substances manufactured by known manufacturing methods by polycondensation of a dihydroxy compound and phosgene or carbonic ester can be used as these resins. The manufacturing method is not limited and commercially available resins can also be used.
  • styrene-based resin a styrene-based monomer such as styrene, ⁇ -methylstyrene, p-methylstyrene, dimethylstyrene, p-t-butylstyrene, or chlorostyrene alone or a copolymer thereof, a copolymer of such a styrene-based monomer and another monomer, for example, a styrene-acrylonitrile copolymer (AS resin), or of the styrene-based monomer and yet another polymer, for example, a graft polymer which was graft polymerized in the presence of a diene-based rubber-like polymer such as, for example, polybutadiene, a styrene-butadiene copolymer, polyisoprene, or polychloroprene, or a polystyrene such as, for example, high
  • the substrate layer may contain other additives as necessary.
  • An additive such as a water repellent, an oil repellent, a colorant such as a pigment or a dye, a lubricant/mold release agent such as silicone oil or an alkyl ester-based agent, a fibrous reinforcing agent such as glass fibers, or as a filler, a granular microparticle such as talc, clay, or silica or a scaly microparticle such as mica, a low molecular weight type anti-static agent such as a salt compound of sulfonic acid and an alkali metal or the like or a high molecular weight type anti-static agent such as polyether ester amide, a flame retardant, an anti-bacterial agent, an anti-viral agent, or a heat stabilizer can be added as the other additives so long as the effects of the present invention are not inhibited. Further, scrap resin generated in the resin sheet manufacturing process can be mixed and used. Moreover, in the present embodiment, so
  • the substrate layer may have a partially cross-linked structure.
  • the average thickness of the substrate layer is preferably 10-250 ⁇ m, more preferably 30-230 ⁇ m, and still more preferably 50-220 ⁇ m.
  • the average thickness is preferably 10-250 ⁇ m, more preferably 30-230 ⁇ m, and still more preferably 50-220 ⁇ m.
  • the resin sheet in one embodiment of the present invention has good tactile sensation and can be secondarily molded on a member surface having a complicated shape. If the resin sheet can be secondarily molded on a member surface having a complicated shape, the resin sheet is suited for use on surfaces of automobile interior members, electronic components, electronic component cladding, cosmetic containers, container members, and the like.
  • "tactile sensation” means the feeling and texture of a surface of the resin sheet. A judgment is made regarding whether a resin sheet surface feels comfortable when touched and when the surface is judged as feeling comfortable, a good specific texture such as moistness, softness, or fluffiness is made the good tactile sensation.
  • the thickness (a) of the substrate layer and the thickness (b) of the base layer of the resin sheet satisfy a ⁇ b.
  • a ⁇ b the stiffness becoming a high value is suppressed and the resin sheet can be secondarily molded on a member surface having a complicated shape.
  • the thickness of the resin sheet refers to the sheet thickness combining the average height of the hair-like bodies, the average thickness of the base layer, and the average thickness of the substrate layer.
  • the sheet thickness is preferably 80-1000 ⁇ m, more preferably 150-900 ⁇ m, and still more preferably 300-800 ⁇ m.
  • the total thickness of the base layer and the substrate layer is preferably 20-750 ⁇ m, more preferably 150-600 ⁇ m, and still more preferably 300-500 ⁇ m.
  • the stiffness of the resin sheet measured in accordance with the 45° cantilever method in JIS L 1096:2010 is 150 mm or less, more preferably 120 mm or less, and still more preferably 100 mm or less. However, when the stiffness on either the front and back and in either the vertical direction or the horizontal direction becomes greater than 150 mm, the stiffness of the resin sheet is deemed to be greater than 150 mm. In one embodiment of the present invention, the stiffness of the resin sheet measured according to the 45° cantilever method in JIS L 1096:2010 is 30 mm or greater, more preferably 40 mm or greater, and still more preferably 50 mm or greater.
  • the resin sheet By setting the stiffness of the resin sheet to 150 mm or less, the resin sheet can be secondarily molded on a member surface having a complicated shape. Further, by setting the stiffness of the resin sheet to 30 mm or greater, wrinkles occurring during extrusion molding and the resin sheet thereby becoming unable to be wound is suppressed.
  • the stiffness of the resin sheet on either the front or back and in either the vertical direction or the horizontal direction in other embodiments of the present invention is 30 mm or greater and 150 mm or less, more preferably 40 mm or greater and 120 mm or less, and still more preferably 50 mm or greater and 100 mm or less.
  • An example of the resin sheet according to the second embodiment of the present invention is a resin sheet in which a sealant resin layer (2) is formed between the base layer (1) and the substrate layer (3), as shown in Fig. 3 . That is, the layer configuration of the resin sheet according to the second embodiment is, from top to bottom, the hair-like bodies and the base layer (1), the sealant resin layer (2), and the substrate layer (3).
  • the hair-like bodies are the same as those explained in the first embodiment, so explanation thereof is omitted.
  • the sealant resin layer is for causing adhesion between the base layer and the substrate layer to be expressed and a modified olefin-based resin, a hydrogenated styrene-based thermoplastic elastomer, and the like can be used as resin components.
  • Olefin-based resins such as olefins with about 2-8 carbon atoms such as ethylene, propylene, and butene-1, copolymers of these olefins and other olefins with about 2-20 carbon atoms such as ethylene, propylene, butene-1,3-methylbutene-1, pentene-1,4-methylpentene-1, hexene-1, octene-1, and decene-1 or copolymers of these olefins and vinyl compounds such as vinyl acetate, vinyl chloride, acrylic acid, methacrylic acid, acrylic ester, methacrylic ester, and styrene, and olefin-based rubbers such as ethylene-propylene copolymers, ethylene-propylene-diene copolymers, ethylene-butene-1 copolymers, and propylene-butene-1 copolymers modified under graft reaction conditions with unsaturated carboxylic acids
  • an "ethylene-propylene-diene copolymer” or ethylene-propylene or butene-1 copolymer rubber modified with an unsaturated dicarboxylic acid or an anhydride thereof, in particular maleic acid or an anhydride thereof, is suitable.
  • the average thickness of the sealant resin layer is preferably 20-90 ⁇ m and more preferably 40-80 ⁇ m.
  • thermoplastic resins may be alloyed with the sealant resin layer at any ratio, as necessary, so long as the effects of the present invention are not inhibited.
  • other additives may also be included.
  • An additive such as a water repellent, an oil repellent, a colorant such as a pigment or a dye, a lubricating material/mold release agent such as silicone oil or an alkyl ester-based agent, a fibrous reinforcing agent such as glass fibers, or as a filler, a granular microparticle such as talc, clay, or silica or a scaly microparticle such as mica, a low molecular weight type anti-static agent such as a salt compound of sulfonic acid and an alkali metal and the like or a high molecular weight type anti-static agent such as polyether ester amide, an ultraviolet light absorber, a flame retardant, an anti-bacterial agent, an anti-viral agent, or a heat stabilizer can be added
  • the method for manufacturing a resin sheet according to the present invention is not limited and may be any method, but typically includes steps of melt-extruding a raw material resin and adding regularly arranged hair-like bodies to at least one surface of the obtained extruded resin sheet.
  • any resin sheet molding method can be used. Examples include, for instance, methods for melt-extruding raw material resins using a single-screw extruder when the sheet is single layer and multiple single-screw extruders when the sheet is multilayer and obtaining a resin sheet with a T-die.
  • a feed block or a multi-manifold die can be used.
  • the layer configurations of the embodiments of the resin sheet of the present application are basically as discussed previously, but beyond these, for example, scrap raw material generated in a manufacturing process for the resin sheet or molded container of the present invention may be added to the substrate layer or laminated as a further layer so long as degradation of physical properties and the like is not observed.
  • the method for adding the hair-like bodies is not particularly limited and any method known by a person skilled in the art can be used. Examples include, for instance, a manufacturing method using an extrusion molding technique, a manufacturing method using a roll-to-roll technique, a manufacturing method using a photolithography technique, a manufacturing method using a hot pressing technique, a manufacturing method using a pattern roll and a UV curable resin, a manufacturing method using a 3D printer, a method for covalently bonding with a polymerization reaction after embedding the hair-like bodies in the resin layer, and the like.
  • the resin sheet according to the present invention can be manufactured by extruding a resin sheet with a T-die technique and casting with a transfer roll on which a relief process has been performed and a touch roll so as to add the shapes of hair-like bodies to a surface of the resin sheet.
  • a roll in which a micro-relief, with a size from several micrometers to several hundreds of micrometers, has been applied regularly on a surface thereof with a laser engraving method, an electrocasting method, an etching method, a mill engraving method, or the like can be used.
  • regular means that the relief is in an arranged state that is not random, that is, is arranged in an orderly fashion in one direction or in two directions.
  • the arrangement of the relief in certain embodiments can be selected from a vertically and horizontally arranged grid arrangement, a staggered arrangement, and the like.
  • Examples of the shape of the relief part include, for example, if the shape of a recess, funnel shapes (cones, quadrangular pyramids, triangular pyramids, hexagonal pyramids, and the like), semicircles, rectangles (quadrangular prisms), and the like.
  • the diameter of the opening of the recess, the depth of the recess, and the spacing of the recess shapes are from several micrometers to several hundreds of micrometers.
  • a metal, a ceramic, or the like can be used as the material of the transfer roll.
  • the spacing between the hair-like bodies can be adjusted by adjusting the spacing between the recesses on the transfer roll and the height of the hair-like bodies can be adjusted by adjusting the depth of the recesses on the transfer roll, and the tactile sensation can also be adjusted thereby.
  • a relief process with a high aspect ratio be performed on the transfer roll surface.
  • the aspect ratio (recess depth/recess opening diameter) when processing recess shapes into the transfer roll surface is preferably 1.0-9.0.
  • a laser engraving method or an electrocasting method is suitable when performing precision processing in the depth direction and therefore is particularly suitably used.
  • a metal, a ceramic, or the like can be used as the material of the transfer roll.
  • various materials can be used as the touch roll, for example, a roll made from silicone-based rubber, NBR-based rubber, EPT-based rubber, butyl rubber, chloroprene rubber, or fluorine rubber can be used.
  • a touch roll with a rubber hardness (JIS K 6253) of 40-100 can be used.
  • a Teflon ® layer may be formed on the surface of the touch roll.
  • a touch roll for example, a roll made from silicone-based rubber, NBR-based rubber, EPT-based rubber, butyl rubber, chloroprene rubber, or fluorine rubber can be used.
  • a touch roll with a rubber hardness (JIS K 6253) of 40-100 can be used.
  • a Teflon ® layer may be formed on the surface of the touch roll.
  • the resin sheet of the present embodiment can be manufactured by using a roll set of the above transfer roll and touch roll.
  • the resin sheet of the present embodiment can be manufactured by adjusting the temperature of the transfer roll to a temperature near the crystal fusion temperature, the glass transition point, or the melting point of the thermoplastic resin (for example, 100-150°C when using a random polypropylene) and casting with a pinch pressure between the transfer roll and the touch roll of 30-120 Kg/cm 2 .
  • the cast resin sheet is taken in at a line speed of 0.5-30 m/minute using a pinch roll or the like.
  • the molded article of the present invention is a molded article using the resin sheet of the present invention.
  • the resin sheet of the present invention can be applied not only to typical moldings, but also to decorative moldings in which printed decoration is performed on a surface of a molded article during molding and the like.
  • Examples of the molding method include, in addition to insert molding and in-mold molding, general vacuum molding and pressure molding, and as applications thereof, a method for heating and softening a resin sheet in vacuum and overlaying on (molding to) a surface of an existing molded product by opening under atmospheric pressure and the like, but the molding method is not limited thereto.
  • known sheet heating methods such as radiation heating with an infrared heater or the like, which is non-contact heating, can be adapted as a method to heat and soften a sheet before molding.
  • vacuum-pressure molding in certain embodiments, for example, a resin sheet is heated for 20-480 seconds at a surface temperature of 60-220°C and then molded onto a surface of an existing molded product and stretched to 1.0-4.0 times depending on the surface shape.
  • the resin sheet in which the hair-like bodies according to the present invention have been added to a surface thereof can be applied to a use requiring the good tactile sensation indicated above.
  • the resin sheet of the present invention can be applied to automobile interior materials, electronic devices, electronic device cladding, cosmetic containers or container members, stationery members, lighting fixture members, and daily commodity members.
  • Examples of automobile interior materials include the portions of the automobile interior that hands touch such as the steering wheel, dashboard, levers, and switches.
  • Interior materials in which the abovementioned resin sheet is molded and pasted to a surface of a known instrument panel or pillar (for example, JP 2009-184421 A ) can be raised as examples.
  • an interior material to which a good tactile sensation has been imparted can be configured.
  • As the material of the resin sheet to be attached in consideration of weather resistance and chemical resistance, an olefin-based resin, a vinyl chloride-based resin, or a urethane-based elastomer is preferable.
  • the method for pasting the resin sheet and the interior material together is not particularly limited.
  • Examples of the electronic device cladding include transmitter housings for keyless entry systems, smartphone housings, smartphone cases, music player cases, game console housings, digital camera housings, electronic notebook housings, calculator housings, tablet housings, mobile computer housings, keyboards, mice, and the like.
  • Portable transmitters in which the resin sheet of the present invention is molded and pasted to a surface of a portable transmitter housing of a known keyless entry system (for example, JP 2005-228911 A ) can be raised as examples.
  • a portable transmitter to which a good tactile sensation has been imparted can be configured.
  • As the material of the resin sheet to be pasted an olefin-based resin or a urethane-based elastomer is preferable.
  • the method for pasting the resin sheet and the housing together is not particularly limited.
  • Examples of cosmetic container members include containers for face cream, pack cream, foundation, and eyeshadow, and a cosmetic container in which the resin sheet of the present application is molded and pasted to a surface of a lid member of a known container for foundation ( JP 2017-29608 A ) can be raised as an example.
  • a cosmetic container to which a good tactile sensation has been imparted can be configured.
  • an olefin-based resin or a urethane-based elastomer is preferable.
  • the method for pasting the resin sheet is not particularly limited.
  • Examples of stationery members include book covers, notebook covers, pen case covers, and the like and for example, a book cover to which a good tactile sensation and waterproofing have been imparted can be configured by fabricating a known book cover (for example, JP 2007-246122 A ) using the sheet of the present invention. Further, the form of the book cover is not particularly limited. As the material of the sheet, an olefin-based resin or a urethane-based elastomer is preferable. The method for manufacturing using the resin sheet is not particularly limited.
  • Examples of lighting equipment members include indoor or in-vehicle lighting equipment and a lighting device in which the resin sheet of the present invention is molded and pasted to a surface of a cover member of a known LED lighting device can be raised as an example.
  • a lighting device in which the resin sheet of the present invention is molded and pasted to a surface of a cover member of a known LED lighting device can be raised as an example.
  • an LED lighting device By pasting the resin sheet, an LED lighting device to which a good tactile sensation and light diffusibility have been imparted can be configured.
  • As the material of the resin sheet to be pasted an olefin-based resin or a fluorine-based resin is preferable.
  • the method for pasting the resin sheet is not particularly limited.
  • Examples of daily commodity members include restroom products, indoor mats, sheets for tables, and the like and a toilet device in which the resin sheet of the present invention is molded and pasted to a surface of a seat member of the toilet device can be raised as an example.
  • a toilet device By pasting the resin sheet, a toilet device with a seat to which a good tactile sensation has been imparted can be configured.
  • an olefin-based resin, a vinyl chloride resin, or a fluorine-based resin is preferable.
  • the method for pasting the resin sheet is not particularly limited.
  • hair-like body sheets in which words or patterns are printed on the surface of the hair-like bodies with a general printing method can be fabricated and applied to the abovementioned uses.
  • the material of the resin sheet to be printed on is not particularly limited, but it is preferable that the printability with the ink used in printing be considered.
  • a laminated body in which the resin sheet of the present invention is laminate molded (dry laminate molded or extrusion laminate molded) with a printed article on which words, patterns, or the like are printed (such as paper or a metal thin film) or with a non-woven cloth or the like can be fabricated.
  • a business card with a tactile sensation can be fabricated by laminate molding to the printing surface of the business card.
  • the material of the resin sheet to be laminated is not particularly limited.
  • the height (h) of the hair-like bodies, the diameter (d) of the hair-like bodies, the spacing (t) between the hairlike bodies, and the thickness of the base layer and substrate layer of the resin sheet were measured using a laser microscope (VK-X100 manufactured by KEYENCE CORPORATION).
  • the measured samples were cross-sectional slices cut from the resin sheets at three arbitrary locations using a microtome.
  • the height of 10 hair-like bodies was measured for each sample and the arithmetic mean value of the 30 measurements was used as the average height of the hair-like bodies.
  • the diameter of 10 hair-like bodies on each sample was measured at mid-height (h/2) and the arithmetic mean value of the 30 measurements was used.
  • the distance from the center of the root of one hair-like body to the center of the root of a neighboring hair-like body was measured at 10 locations on each sample and the arithmetic mean value of the 30 measurements was used.
  • the thickness of the base layer and substrate layer was measured at 10 locations on each sample and the arithmetic mean value of the 30 measurements was used.
  • the thickness of the base layer is the distance from the roots of the hair-like bodies to the interface with the other layer.
  • a sensory evaluation of the good tactile sensation was performed by having a total of ten people, five men and five women, touch the resin sheets. Evaluation was made using specific tactile sensations (smoothness, moistness, and the like) when touching the resin sheet surface and the tactile sensation felt by the greatest number of people was made the tactile sensation of the resin sheet surface.
  • the resin sheets were heated in vacuum with a double-sided vacuum molding machine (NGF-0709-S, manufactured by Fu-Se Vacuum Forming) and then molded articles were fabricated by vacuum pressure molding the resin sheets to a surface of a mold which was made into a mold for a container for storing miscellaneous goods.
  • the sheet surface temperature during molding was set to 110°C as a temperature at which a good tactile sensation can be sufficiently maintained.
  • Formativeness evaluation was performed by means of the appearance of sheet tracking in the corner portions of the bottom surface of the container. As the evaluation criteria, ⁇ was given when the sheet was able to track and ⁇ was given when the sheet was unable to track (when a break occurred or there was a gap between the container and the sheet).
  • the extruded resin sheet was cast using a relief-processed transfer roll on which a relief process had been performed with chromium oxide spraying and a laser engraving method and which had been adjusted to 60-150°C and a silicone-based rubber touch roll having a rubber hardness of 70 and which had been adjusted to 10-90°C and taken in at a line speed of 1-15 m/minute using a pinch roll.
  • Resin sheets with the compositions, the thicknesses, and the surface shapes shown in Table 1 were obtained thereby.
  • the resin sheets of Examples 1 and 2 satisfy the evaluation pertaining to tactile sensation and furthermore have the specified stiffness and satisfy the evaluation criteria for moldability during extrusion molding and formativeness, and that formativeness is preserved in the molding temperature range at which a good tactile sensation is maintained.
  • the sheets of the comparative examples satisfy the evaluation pertaining to tactile sensation, these do not have the specified stiffness, breaks or gaps between the container and the sheet occurred in the formativeness evaluation test (Comparative Examples 1-3), wrinkles developed during extrusion molding (Comparative Example 4), and the evaluation criteria for moldability during extrusion molding and/or formativeness were not satisfied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)
EP21842731.8A 2020-07-14 2021-07-07 Feuille de résine présentant des corps semblables à des cheveux et article moulé correspondant Pending EP4183582A4 (fr)

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JP2020120628 2020-07-14
PCT/JP2021/025632 WO2022014439A1 (fr) 2020-07-14 2021-07-07 Feuille de résine présentant des corps semblables à des cheveux et article moulé correspondant

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CN (1) CN115812031A (fr)
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JPH0747285B2 (ja) * 1987-10-02 1995-05-24 株式会社カンセイ 起毛状樹脂成形品の成形法
JPH071626A (ja) * 1993-06-17 1995-01-06 Daikyo Inc 植毛内装部品とその製造法
JP4383917B2 (ja) 2004-02-13 2009-12-16 株式会社ホンダロック 携帯電子機器
JP4769602B2 (ja) 2006-03-15 2011-09-07 三菱樹脂株式会社 蓋材
JP4645992B2 (ja) 2008-02-04 2011-03-09 株式会社ホンダアクセス カバーパネル
US9885148B2 (en) * 2012-12-18 2018-02-06 Kyowa Leather Cloth Co., Ltd. Laminated sheet and method of manufacturing the same
US9987907B1 (en) * 2015-06-23 2018-06-05 Madico, Inc. Heat shapeable film composite
JP6584204B2 (ja) 2015-08-05 2019-10-02 株式会社エイエムジー 化粧品容器
KR102393696B1 (ko) 2016-07-20 2022-05-02 덴카 주식회사 모상체를 갖는 열가소성 수지 시트 및 그 성형품
US11441260B2 (en) * 2017-03-29 2022-09-13 Toray Industries, Inc. Sheet-like material
KR102578303B1 (ko) * 2017-09-06 2023-09-13 덴카 주식회사 모상체를 갖는 수지 시트 및 그 성형품
JP7127982B2 (ja) * 2017-12-15 2022-08-30 株式会社クラレ 刺繍付人工皮革を用いた加飾成形体及びその製造方法
EP3744502B1 (fr) * 2018-01-24 2022-11-09 Denka Company Limited Procédé de fabrication d'une feuille de résine ayant des corps ressemblant à des cheveux
CN113039062B (zh) * 2018-11-16 2023-05-26 电化株式会社 具有毛状体的热塑性树脂片材及其成型品
WO2020116453A1 (fr) * 2018-12-04 2020-06-11 デンカ株式会社 Feuille de résine ayant des corps en forme de cheveux, et article moulé de feuille de résine ayant des corps en forme de cheveux

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CN115812031A (zh) 2023-03-17
KR20230035587A (ko) 2023-03-14
JPWO2022014439A1 (fr) 2022-01-20
TW202216461A (zh) 2022-05-01
JP7487309B2 (ja) 2024-05-20
WO2022014439A1 (fr) 2022-01-20
US20230347635A1 (en) 2023-11-02

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